Legal Opinion
Oliver J. Burland v. Trippe Manufacturing Company
Court of Appeals for the Seventh Circuit
Decided October 22, 1976No. 75-2111PublishedCited by 10 opinions
1Opinion of the Court
TONE, Circuit Judge.
The patent before us in this infringement suit covers a bar and appurtenant hardware to be used in mounting sirens and flashing lights on the tops of police cars and emergency vehicles. The District Court held the claims relied on valid and infringed. We hold them invalid for obviousness and therefore do not reach the issue of infringement.
I
Only claims 3 and 4 of plaintiff’s U.S. Patent No. 3,677,451 are in issue. The patent covers a bar with one or more pairs of T-shaped slots running along the top and bottom of its entire length. In claim 3 the bar has a hollow center…
2Cases cited5 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- Sakraida v. Ag Pro, Inc.Supreme Court of the United States · 1976
- Ingersoll-Rand Company, Plaintiff-Appellant-Cross v. Brunner & Lay, Inc., Defendant-Appellee-CrossCourt of Appeals for the Fifth Circuit · 1973
- Walter H. Pederson, Resident of Minnesota v. Stewart-Warner Corporation, a Corporation of the State of Virginia,defendant-AppelleeCourt of Appeals for the Seventh Circuit · 1976
3Cited by10 opinions
- Republic Industries, Inc. v. Schlage Lock CompanyCourt of Appeals for the Seventh Circuit · 1979
- Rengo Co. Ltd. And Simon Container MacHinery Limited, in No. 80-2556 v. Molins MacHine Company, Inc., in No. 80-2557Court of Appeals for the Third Circuit · 1981
- Dual Manufacturing & Engineering, Inc. v. Burris Industries, Inc.Court of Appeals for the Seventh Circuit · 1980
- Polaroid Corp. v. Eastman Kodak Co.District Court, D. Massachusetts · 1986
- Union Carbide Corp. v. American Can Co.District Court, N.D. Illinois · 1983
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